Swimming instructor, Young-eun is a single mom raising her 7-year-old daughter, So-hyun. However, a series of tragic events happens as So-hyun's puppy falls from the apartment and dies, and So-hyun bullies other kids in school. Despite her mom's earnest efforts to address So-hyun's mental disorder, her peculiar behavior persists. Twenty years later, Min, who works in handling unclaimed deaths, meets a new colleague, Hae-young, and they form a close bond. However, as Hae-young warmly integrates herself into Min's life, Min begins to feel uncomfortable and suspicious about her intentions.
Kwak Sun-young
Kwon Yu-ri
Lee Sul
Gi So-you
Shin Dong-mi
Score: 7.4
Score: 6.7
Score: 6.6
Score: 7.6
Score: 6.5
Score: 0.0
Score: 8.1
Score: 4.5
